Paper-bag machine.



F. h. BERULIJ, JR.

PAPER BAG MACHINE. APPLICATHIN FILED JUNE 21, 909. RENEWED NOV. 6. HUB. 1,212,178, Patented Jan. 16,1917.

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PAPER BAG MACHiNE.

APFLICAHON FILED WHEN. 19w. nzwzww NOV. s. 1916.

Patented Jan. H3, 1917.

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WJiMIIF Patented Jan. 16, 1917.

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PAPER BAG MACHENE,

APPLICAHON FILED JUNE 21.1909. REmww Nov. a 29:6.

1 ,21 2,1 78. Patented ,1 an. 10, 1917.

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APPLICATION HLED IUHEZI. 190s. acumen NOV. 6; ms.

Patented Jan. 16,1917.

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APPLICATION FILED JUNE 2!, I909. RENEWED NOV. 5. l9l6.

1,2121 78, Patented Jan. 16,1917.

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vto the accompanying partly in section of .surplus paper cut from the webs. -1S a side FREDERICK I-I. BEROLD, J'R., OF CINCINNATI, OHIO.

PAPER-BAG MACHINE.

Application filed June 21, 1909, Serial No. 503,386.

7 '0 all whom it may concern:

Be it known that I, FREDERICK H. BER- OLD, Jr., a citizen of the United States, residing in the city of Cincinnati, county of Hannlton, and State of Ohio, have invented a certain new and useful Paper-Bag Machine, of which the following is a full, clear, and exact description, reference being had drawings, forming part of this specification.

My invention embodies a completely organized machine for forming and simultaneously lining paper bags with suitable lining material, so that each bag as it' is delivered from the machine is of the duplex type, a complete outer bag or envelop and a complete inner bag or lining member.

The machine is organized to receive webs of paper from suitable rolls, to properly parafiin or apply the water proofing mate rial to the web from which the lining member .is to be formed, to trim the duplicate webs to proper size, to print the desired advertising matter on the outer or envelop member, to cut and to form the blanks, to bring them together for folding, to apply the necessary glue or adhesive material, and to fold and deliver the completed bags printed and lined, with great rapidity from the machine, where they are automatically counted and arranged in piles or packs of the desired number of bags for each package.

The machine embodies a reat variety of novel features of construction and operation which, in course of the accompanying description, will be fully pointed out and claimed in the claims.

In the drawings Figure 1 is a side elevation of my machine. Fig. 2 is a top plan view of the same. Fig. 3 is a frontelevation of a pair of the rotary cutting dies. Fig. 4 is a side elevation of same. Fig. 5 isv a plan view of 'a'portion of the duplex webs of paper after the webs have assed the cutting ies, Fig-6 is a detail Sid elevation of the printing cylinders for the outer envelop and the slitters for trimmingthe side ed es of both webs, taken from the opposite s de of the machine to that shown in Fig. 1. Fig. 7 is a front elevation ofthissame portion of the machine. Fig. 8 is a front elevation the rotary die cutters, showing the receptacles for drawing if the ig. 9 side elevation taken from'the left hand ,of the construction shown in Fig, 8.

Specification of Letters Patent.

Patented Jan. 16, 1917. Renewed November 6, 1816. Serial No. 129,914.

Fig. 10 is a central vertical section of the same. Fig. 11 is a front elevation partly in section illustrating the carrying and severing cylinders. Fig. 12 is a side elevation of same. Fig. 13 is a side elevation of the glue applying and deliver mechanism. Fig. 14 is a front elevation 0- same.

1, 1, are the solid and substantial side frames suitably bolted and braced together to form arsubstantial framework for the operating parts of the machine, and prpvided at proper points with journal bearings for the large number of rotar parts, which hearings will not be speciliiially described, but which it will be understood are sup )lied as illustrated, for all of the rotating shafts and other rotary parts.

Mounted on suitable spindles journaled in the framework at the rear of the machine, are thepaper rolls 2 and 3 from which the bags are formed. These rolls are provided with suitable adjustable tension devices 4, 5,

for imparting the proper tension on the rolls in feeding the webs of paper therefrom. The web 6 from the roll 2 forms the outer envelop and the web 7 from the roll 3 supplies the material for the lining.

While paraflined or waxed paper is furn ished as a commercial article in rolls, has-been found difficult to handle, in a paper bag machine, lining paper that has been reviously parafiined, and I have, there ore provided as one of the important parts of my machine, apparatus for paraflining the paper at the same time that it is fed to the machine, for cutting and folding, as the lining member of the duplex bag.

One difliculty arises in. connection with passing theweh of paper through a suitable paraflin ba th to be fed continuously to the bag forming mechanism, and that is that the paraflin must be maintained at a constantly uniform temperature. As the-paraflin is taken up from the trough by the paper, it is necessary' to supply fresh water proofing material, and the addition of a fresh'supply to the paraflin trough lowers the temperature, and at once difiiculties arise with the paraffin web. Moreover as it im )OSQ the lini' T web upon the envelop we in forming 1e bag it is essential that the web should "be reaches the ba forming mechanism. To overcome these litficulties, I provide as follows; Located horizontally intheupper. end

is intended to super-' properly dried before it.

ofthe rear; portion of the frame s {trough or receptacle 8 for the liquid paraiiin, and in this trough is mounted the paraflin distributing roll 9, and immediately above it and bearing on its surface the pressure roll 10, and the web 7 ,from the roll 3 is fed over the guide roller 11 and between the rolls 9 and 10, where it receives'its paraiiin' bath, the distributing roll 9 being driven by suitable sprockets and sprocket chains from the drivingemechanism, and the distributing rolls also ing provided with a scraper to scrape ofi the surplus paraflin. The trough is provided with a steam jacket with steam supply therefor, to maintain a uniform temerature for the paraffin in the trough. In order that this trough may be keptisupplied with liquid paraflin at the proper temperature, I melt the parafiin in a separate receptacle, not shown, and run same to the trough through the pipe 12 provided with a proper non-conducting jacket 13, and with a'steam pipe 14 passin through the paraflin pipe so that the paraifin as it is run from the tank, may be maintained at the uniform b61256!- ature required, for the'pa r, and as an tional supply is require the heated araflin is run into the trough through the elivery pipe 15 connected with the {life 12, and controlled by a suitable valve. n the paraflined material may be maintained in -the paraffin trough at a uniform temperature not affected by the change of temperature incident. to supplying sh paraiiin which has to be; dissolved and heated. The web 7 after it, receives its parafiin bath passes over the guide roller 16 and around the steam drum 17 where the temperature is maintained to thoroughly saturate the paper, and thence it asses over the cooling drum 18, idler rolls eing' rovided to give the necessary. direction to e web.

Mounted 1n the side standards a part of the main frame, are the draw rollers 19 and 20, through which the paraflined passed, and which maintain, the proper tension and draft on the web. Thence the web is passed between the slitting disks 21, 22, 23, 24 as shown in the u per portion of Fig. 7, where the side ed are trimmed off and the web cut of proper width. These slitters are of the ordinary construction of rotary slitting devices mounted respectively on shafts 25 and 26 driven by a suitable train of gearing, and the slittinlg disks are adjustable on these shafts for t e varying widths required. As the web 7 is receiving its bath .of paraflin and being dried and fed to the slitting disks, the web 6 from the roll 2 is fed over the guide rollers 2'1, 28 to the printing cylinders 29, 30. These printing oilinders are of the ordinary construction or a cylinder press and the forms on the c linder 29 receive their ink from the inhing receptacle 31 .through the ordinary series of ink distributing rolls 32, which is not so that the dis this way web is then a necessary to describe in detail. It will also mam riving mechanism of the machine.

From the printin cylinder the web 6 is fed to a set of slitting disks 33, 34, 35 and 36 mounted on shafts 37,38 in all respects similar to the u per set of slitting disks heretofore descriiied for the lining, where the web for the envelo member is cut of the roper size. The ining web and the enve op web are-thence fed to the rotary cutting dies which are arranged in pairs one above the other in suitable standards on the framework, and the blanks cut into proper shape for folding into the desired bags. One pair of these disks is illustrated in detail in Figs. 3 and 4. Each pair of these disks 39, 40, is rovided with a hub portion 41, 42, mean on the shafts 43, 44, and secured by set screws so that they .can be adjusted, for pro er sizes on the shafts, and can be removed from the shafts and other disks substituted to cut out diflerent blanks. The lower disks of each pair carry fixed cutting blades 45, 46 set in suitable annular grooves in the periphery of the disk, and with a transverse portion 47, while the upper set of coiiperating disks carries a similar cuttin blade 48, 49, which blade is arranged to adjustable in the slot by the set screws 50, so that the two coiiperating cutting blades will give a roper shearing cut. The paper web for the ining and for the envelop member being passed through their respective rotary cutters, the blanks are cut away as illustrated 5 at 51, 51- for thelining member and 52, 52 for the envelop member. The. portion of the web 53 for the lining member and 54 for the env op member forming one side of the flatba and the portion 55 for the lini member and 56 for the envelop member orming the other side of the bag, and the blanks being ultimately folded on the transverse lines 57 and 58 to form the bottom line of fold for the bags, while the blanks are ultimately severed on the'dotted lines 59 and 60 for the-upper opening edge of the bag" In order toremove the surplus material cut out by the rotary dies, I provide the receptacles 61 and 62 for each set of rotary dies, the receptacles being preferably of sheet metal open at the top, and surrounding the lower set of cutting disks'ineach case. These receptacles are provided with the chutes 63, 64 which are connected with a suction blower not shown, and the strips of paper as they are cut from the blanks are.

gether around the guide roller 65'w1th the broad side 53 of the lining blank superimposed on the broad side 54 of the envelop blank with the bottom line of fold 57 and 58 coinciding, and the narrow side of the lining blank superimposed on the narrow side 56 of the envelop blank. The two webs thus superimposed are then passed over the plate 66 the side edges of which are provided with inwardly curved flanges 67, 67, where the side edges of the two blanks are turned over on the lines 68, 68 for the lining and 69, 69 for the envelop member. Inasmuch as the lining web is wider than the envelop web for the bottom sides of the two blanks the narrow flaps 70 for the outer blank and wide flaps 71, 71 will be formed for the lining blank. which will extend inwardlybeyond the narrow side flaps of the envelop blank. The webs are then fed to the carrying cylinder 72, which is mounted in suitable journals in the frame and suitably driven by a train of gearing from the driving shaft. This cylinder is provided with. the slotted plates 73, 73 running lengthwise of the cylinder, and arranged on opposite sides of the periphery, the longitudinal Slot 74 being formed therein to receive the cutting knife for severing the bag when folded from the web. Also mounted lengthwise on this carrying cylinder, at points 90 degrees from the cutting blades are the gripping bars 74, 74. One member of this gripping means is a fixed plate 75 mounted len thwise in a suitable cut-awav )ortion of the cylinder, and the other member of the grippers is a movable plate 76 which is carried on side plates 77 which plates are curved segmentally and mounted on the ends of the carrying cylinder.

78 is a rock shaft one for each pair of grippers, mounted in the cylinder and carrying a short arnr84 and a longer arm 79, these arms being secured to the shaft 78 by the set screws 85, 86. The short arm 84 is pivoted by the screw 87 to the side plate of .the movable gripper, and the long arm 79 carries a roller80 on its outer end which roller bears upon the cam '81 fixed on the frame, and this cam is provided with the cam surface 82, as indicated by dotted lines in .Fig. 12. Theouterend of the side plate 77 is connected by a coiled spring 83 to a pin fixed on the cylinder.

It will be uuderstoodthat the arms 77 which carry the movable gripper plate are tion applies to both ends of the cylinder.

The tendency of the coiled springs 83 will be to close the gripping plates, but so 1011 as the roller 80 rides on the high surface 0% the cam 8! the arm 79 and the rock shaft 78 with its clnnecting arm Stwill ush the movable plate away from the fixe gripper plate, and the-grippers the roller 80 rides down to the low surface of the cam the tension of the coiled spring 83 will close the gripper plate. The com surface on the cam is so formed that each pair of grippers will ,be held closed a little more than one-third of the revolution of the carrying wheel. The function of these gripper plates is to hold the paper blank on the carr ing wheel, creasing it at the bottom line of old until the duplex bag is supplied with the necessary adhesive material, and properly folded and cut from the web to be delivered from the machine.

In order to force the bottom line of folds between the gripper plates and also to sever the bag from the web, I provide the cylinder 88, mounted by bolts 89 in the slot 90 in the shaft 51 journaled in suitable journals in the framework, and held with proper tension on the carrying roll by the coiled springs 92, 92.

Mounted in suitable slots or cut-away portions of the cylinder 88 on opposite sides are the bars 93, 94. These bars are provided with transverse arms 95, 90 at each end coupled together by the coiled springs 97, 97 and 98, 98. The bar 93 carries a serrated cutting knife 99, and the bar 94 carries the plate 100. The outerends of the bar 93 carrying the cutting knife is provided with the roller 101, and the outer end of the bar 94 carries at each end a block 102 which is pro-v vided with a beveled surface 103. Fixed on the framework at each end of the bars 93 and 94 is a disk 104 which has :a beveled lug 105 fixed in its surface. As the beveled surface 103 of the block 102 comes in contact with this lug, the plate 100 mounted on the bar 94, which normally is held flush with the surface of the cylinder .Will be projected therefrom to enter in between the open aws of the gripper, and this will force the web of paper n betwe the gripping plates, the cam 81 being so a ranged that the grippers will then close, holding the web on its folding line to the carrying wheel. As soon. as the bar 94 has passed the lug 105,- the coiled springs will retract the folding plate 100 flush with the surface of the cylinder 88. As the two cylinders are rotated in the direction of the arrows by suitable gearing from the driving mechanism, when the cutter bar 93 carrying the cutting knife 99 reaches the beveled lug 105, the roller 101 will project the cutting knife from the surface of the upper cylinder into the slot 74.

in the plate 73, and the paper web will be severed.

In order not to finally release the bag from the carrying wheel, both cylinders are provided with peripheral grooves 106, 107 so that the bag will not be completely severed.

s soon asthe blank has been grasped by the grippers and his held onthe parrying :thenecessan', gdhesive aataml epl is plied to the side edges of the blank. This is accomplished by the apparatus shown in Figs. 13 and 14.

108 is a suitable pan or receptacle for containing the glue mounted in the framework, and in this receptacle is journaled a roller 109 which roller contacts with another roller 110 suitably journaled in the framework. 111 is a shaft also suitably journaled in the .framework, which carries adjustably mounted thereon a pair of segmental daubers 112, 112 which contact with the glue roller 110 to receive the necessary glue and convey it to the side edges of the blank. The roller 109 is driven by the gear 113 which receives its motion from a screw 114 driven by a train of beveled gears and pinions from the driving mechanism, while the roller 110 and shaft 111 receive their motion from another and separate train of gearing from the driving mechanism.

It is usual in glue applying devices to provide a roller which runs in the receptacle for the glue and supplies the glue for the daubers, and to provide in connection therewith a scraping plate to scrape the excess of glue from the glue delivering roll. lVith this construction dirt accumulates underneath the plate, supply and distribution' of the glue. In order to overcome this difficulty, I abandoned the use of the scraping plate and substituted the roll 109"'therefor. This roll running in contact with the glue distributing roll 110 allows any particles of dirt to pass on to the distributing roll and this dirt does no particular harm, while the close contact of the rollers 109 and 110 prevents any excess of glue accumulating on the distributing roll 110. After the glue is supplied to the side edges of the web of paper, the forward edge of the blank is completely severed from the web so as to loosen the forward flap of the blank and allow it to be folded down over the matic blower.

The shaft of the carrying cylinder is hollow and provided with a. pair of blowing tubes 115 as shown in Figs. 2 and 12, the nozzles. of which extend nearly to the surface, of the carrying wheel underneath the paper web.

116 (Fig. 1) isa pump driven by suitable pitmenand connections with the driving mechanism. 117 is a pipe from this pump to the hollow carrying cylinder shaft, while the movements are so timed that at the proper moment a put! of air is driven through the nozzle 115 to tear the web at the points left by the gr0oves106, 107, and the front edge of the blank is completely severed from the web. This leaves the outer end of the blank free, and inasmuch as the bottom or folding edge of the blank is still held on the carrying wheel, the blank is. carried 'wheel the loose flap of and soon stops the proper glued portion by an auto-' under the folding roller 118, and the duplex bag folded. In order that this foldin may be insured, I provide a shaft 119 whic carries disks or pins 120, and which shaft is rotated by suitable gearing inthe same direction as the carrying wheel, so as to tend to throw out and away from the carrying the paper blank. The bag having thus been completely former], is fed down ietween the rolls 121, 122 to the delivery mechanism. This delivery mechanism comprises a table 123, which supports on each side a pair of vertical guides 124 between which the bag is delivered in upright position against a movable vertical plate 125, which plate is mounted in a slot in the table 123, so as to move outwardly as the bags accumulate. 126 is a pushing'plate having a central stud 127 sliding in a suitable bearin-g 128 on the table framepand as the bags are delivered between the vertical guides 124, the pushing plate 126 is moved forward by a common well known eccentric disk construction indicated at 1.29 in Fig. 13, which pushes the bag and the plate 125 forward, as the bags accumulate. In order to indicate when a certain number of bags, as fifty. have been delivered, I provide for a pushing plate which will contact with the side edges of the ha and )Uhll out of aline ment every fiftieth ag. his construction consists of a lever 130 (Figs. 13 and 14), which lever is pivoted on the table frame 131, and carries at its upper end a thin push plate 132. The lower end of the lever 130 is connected by pin and slot connections 133 with the shaft 134 mounted transversely in suitable bearings underneath the table,

and adapted to be shifted transversely to rpck the lever 130 and cause the plate 132 trfshoveeut of alinement-oneof the paper bags. The shaft; 134 carries at oneend the depending beveledwlug 135. Mounted horizontally:underneatlf'the shaft 134 is a disk 136 which carries a pin 137, and this disk 136 is carried by the worm gear' 138 which meshes with the worm 139 on a shaft 140 j ournaled in the framework,.and rotated by a suitable sprocket chain gear from the driving mechanism. The parts are so arranged that as each bag is delivered, the, worm gear 138 will be moved one tooth, and for every fifty bags delivered, the worm gear ,and disk plate 136 will be given a complete lhe operation of the entire machine as a whole will be evident from the foregoing description of the several parts. In describ ing the various nicchanisl'ns, no attempt has been made to s 'iecificzilly point out by number and letter, the various trains of gear ing by which the large number of rotating shafts are operated as this will apparent] needlessly encumber the description. It wi l he iuulcrstood that chain gearing, beveled gears and spur gears and pinions are provided properly arranged and timed to impart the proper timed movements tothe rctatixn; parts, The main driving shaft of the machine is it shaft 150 with fly-wheel 151, and carrying loose and tight yuilleys 152, with. the belt shifter 153 operated by suiiuljilo hand lover.

The nnichinc is as (it-scribed desi ued for forming from suitable webs of paper, lined of the duplex parts of the bug may have a centre} seam.

The general plan of the construction hit-h twins the essential features of my invent" in, do not, of course, relate to the various details which I here only described in general terms.

The most important objects of my invention are to provide a construction in which the web to form the lining of the bag can be effectively coated or saturated ith any material desired during the continuous operation of the machine, and in which the lining member can be continuously superimposed on the envelop member after both webs have been properly cut, and in which the supenimposed webs are then folded and glued and separate duplex bagb delivered continuously and with great rapidity from the machine. Y

Another important CUDStI'llCtiOIl in my machine, relatesito the glue applyingdevices whereby a rotating roll substituted for the ordinary scraping plate so that there is no clogging of the glue. This is of importance inasmuch as the bags are finished and delivered with great rapidity, and any failure to properly pply the glue results in a lar number of effective bags before the fault 1s noticed and the defect corrected. It is also of im ortance to construct the blank forming dies so that they can be readily strung on the pro or shaft, adjusted for sizes an different dies substituted for the cutting of different characters of blanks.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In a paper bag machine, feedin mechanism for feeding two separate webs 0 paper, two cutting mechanisms for separately cutting the Webs to form bag blanks, a former for partially folding the blanks when superimposed, u carrying cylinder, with means for grasping and holding thereon the superimposed blanks, and for folding same simultuni'rously into complete bags.

2. In it paper bag machine, feeding mechanism for feeding two separate webs of paper, two cutting mechanisms for sepa rutely cutting the webs to form bag blanks, a, former for folding the sides of the blanks when superimposed, a rotatable cerr in cylinder and a gripping means to liol the duplex blank thereon, comprising a fixed and a, movable bar mounted lengthwise of the cylinder, with side arms and springs secured thereto to close said gripping means, with cums to operate said grippers during a portion ot the rotation of said cylinder.

3. In a paper bag machine, feeding mechanism for feeding two separate webs of paper, two cutting mechanisms for separately cutting the webs to form bag blanks, a single former for folding the sides of the blanks when superimposed, a rotatable carrying cylinder and a gripping means to hold the duplex blank thereon, comprising a, fixed and a movable bar mounted lengthwise of the cylinder, with means for opening and means for closing said movable bar at stated intervals during the rotation of the cylinder.

4. In a paper bag machine, feedin mechanism for feeding two separate webs 0 paper, two cutting mechanisms for separately cutting the webs to form bug blanks, a single former for foldin the sides of the blanks when superimpose a carr ing cylinder with means for gras ing an holding thereon the superimposed lanks, means for distributing glue to both of said blanks simultaneously, and mechanism for folding same into a duplex bag in one operation.

5. In a paper bag machine, feeding mechanism for feeding two separate webs of paper, two cutting mechanisms for separately cutting the webs to form bag blanks, means for supcrimposi said two webs with fold lines of the bl s coinciding, and mechanism for grasping and holding said blanks and for oldlng both blanks simultaneously into complete bags.

6.; In a paper bag machine, .feedin mechanism for feeding-two separate webs 0 paper, two cutting mechanisms for sepa; rately cutting the webs tofu-m bag blanks, means for su erimpcsing) 88.1(1 two webs, with the fold mes of'thc lunks coinciding, and mechanism for graspingand holdi said blanks, means for, applying glue to bot blanks and for foldin'gcame' mtocompletc 71m a paper bag machine, feedin mechanism for feeding two separate webs 0 paper, two cutting mechanisms for separutely cutting the webs to form bag blanks,

means for superimposin said two webs, with the fold lines of theilanks coinciding, and mechanism.for grasping and holdin said blanks, means for applying glue to botfi blanks simultaneously and for foldin same into complete bags, with mechanism or delivering the complete bags and for indicating packages of any desired number thereof. In a paper bag machine, feeding mechanism for feeding two separate webs of paper, two cutting mechanisms for separately cutting the webs to form bag blanks,

one cutting mechanism located above the other, with a paper receptacle and chute intermediate the two cutting mechanisms to carry off the paper cuttings from the uppermost web to prevent 100'! 'ng upon the undermost web and means fibr superimposing one web upon the other to form the duplex bag.

FREDERICK H. BEROLD, JR. Witnesses:

ARTHUR H. EWALD, EARL M. GRIFFIN. 

